The Herald has asked the DHB for clarification on the number of residents who tested positive for RSV.
Meanwhile, hospitals across the country have been postponing surgeries and creating extra bed space for children as they deal with a sharp surge in the highly contagious winter virus.
Children under 14 were not allowed to visit loved ones at Starship hospital due to clogged up waiting rooms.
The latest ESR (Institute of Environmental Science and Research) data showed weekly visits to the six main hospitals for RSV continued to rise to a total of 2543 this year. Of that, 735 were recorded in the week ending July 11 alone.
New Zealand has seen a sharp increase in the number of RSV hospital presentations since not long after the bubble was opened to Australia in April.
In May, there were 19 cases in total, and only four recorded in the week ending May 23.
Last year, ESR only recorded 34 RSV hospital presentations between April to September in total.
MidCentral DHB's advice was: "Anyone experiencing cold or flu symptoms, or symptoms of respiratory illness, to seek a Covid-19 test.
"Testing for Covid-19 is currently being done at General Practice (GP) and at our designated testing site in Palmerston North."
Anyone who was feeling unwell was encouraged to stay home and to maintain high standards of personal hygiene, including coughing into their arms and regularly washing and sanitising their hands.
If you require medical attention from a GP, please ensure you call the practice first. Free medical advice can also be sought by calling Healthline on 0800 611 116.